Bicycle-lock



No. 6Il,757. Patented Dot. 4, I898. c. H. MELUIOND.

BICYCLE LOOK.

(Application filed Dec. 8, 1897.)

(No Modal.)

-tions and combinations of U ITED STATES PATENT rnron.

CYR H. MELQUIOND, OE OAKLAND, CALIFORNIA.

BICYCLE-LOOK.

SPEGIFIOATION forming part of Letters Patent N 0. 611,757, dated October 4, 1898.

Application filed December 8, 1897. Serial No. 661,128. (No model.)

T0 alZ wwm it may conccrn:

Be in known that I, CYR HARRY MELQI- OND, a citizen of the United States, residing at W'est Oakland, county of Alameda, State of California, have invented an Improvement in Bicycle-Looks; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to that class of devices known as velocipede-locks.

It consists of the parts and the construcparts hereinafter described and claimed.

In the accompanying drawings, Figure lis a section through the saddle-post and my look, showing the bolt ready to be locked to the shaft. Fig. 2 is an outside view of the same.

A is a rod having its .upper end A bent at right angles and its lower end extending through the cap of a cylinder B.

Within the lower part of the saddle-post D is a bloc]; or bearing-piece D whioh is sorewed or otherwise fixed in place. This block or piece is open at one side between upper and lower laterally-projecting arms, one of Which forms a guide 0 for the rod A, while the other forms a guide D for a cylinder B, whioh is adapted to have a slidable movement independent of the rod. The cylinder has a removable cap E, which may be readily reached and manipulated in assermbling or separating the parts through the open side of the block or pieee D"*.

From the lower end of the cylinder projects a bolt E, and the crank-shaft F, rotating in the bracket below, has a hole or socket f made in line With the bolt, so that the latter can be forced into it and the shaft prevented from rotating. Within the cylinder is a spiral spring G, the lower end of which presses upon the bottom of the cylinder. Vithin the cylinder and fixed to the rod A is a disk or oollar H, which rests upon the top of the spring, and when the rod is pushed clown it compresses the spring, and this, pressing against the bottom of the cylinder, wil1 force itand the looking-bolt E clownward, so that when the revolution of the shaft F has turned so as to bring the sooket f in line the bolt Will enter it and stop the shaft.

The bent upper end of the rod A extends out through a slot in the post.D and forms a handle by Which the rod can be pushed down.

I is a dog or detent pivotally suspended frorn a.lug I, depending from the under side of the upper arrn of the block or piece D*and controlled by the spring J so that when the rod A is pressed clownward and the spring compressed Within the cylinder the detent actuated by its spring Will engage With a catch-a upon the rod and thus look it in its depressed position. This maintains a compression of the spring, so that it will act upon the cylinder and cause the boit E to engage the sockec fas soon as the latter cornes in line With the bolt. This looks the shaft until the detent is disengaged and the rod A is allowed to move up to its normal position. In order to release the detent, I provide the key K, adapted to fit the onter end of the shaft 2', to which the dotent I is secured, so that the rider by turning this key and at the same time pressing on the handle A oan readily release the detent I and allow the parts to assume their normal position. By further pulling the handle A np the rod and cylinder will be lifted and the boit E Withdrawn from the socket f, leaving the shaft again free to revolve. The shank of the handle A may thon be direoted into an inolined slot 0, connecting With the vertical one, in which it normally moves, and this prevenrs the parts dropping, so as .to accidentally look V the machine.

Having thus described n1y invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A bicycle-look contained within the saddle-post and comprising a block or support fixed within said post and having an upper and lower arm provided With guides, a cylinder movable in the lower guide and pro- Vided With a bolt extension to engage asocket in the pedal-shaft, a rod slidable in the upper guide, having its lower end operating as a piston in the cylinder and its upper end projecting through a slot in the post, a spring Within the cylinder and a removable cap for the cylinder, said block or support being open between its arms, on one side, whereby the cap may be manipulated in assombling or separating the parts of the device and means for engaging said rod and locking the latter in a depressed position.

2. An mproved bicycle-lock consistng of a block or support wthin the saddle-post and provided With end arms projectng at rght angles to its body, a r0d slidable through one of said arms, having the portion above the same bent and extended through a camslot in the saddle-post and the lower cnd provided with a collar, and the portion intermediate of the ends provided with a 111g or catch, a cylinder slidable in the lower arm of the bloc]: 01' support and providcd With a 100113 t0 engage a socket in the pedal-shafs, a sprng in the cy1inder between the bottom thercof and the oollar on the rod, a paw1 pivotallymount- 4 CYR Il. MELQUIOND. Witnesses:

GEO. H. STRONG, S. H. NOURSE. 

